Stapling machine



April 26, 1949. w NUMBERS I 2,468,715

.STAPLING MACHINE Filed Sept. 13, 1946 2 Sheets-Sheet 1 INVENTOR WlLLlAM Numeens BY m A ORNEYS April 1949 w. NUMBERS 2,468,715

' STAPLING MACHINE Filed Sept. 15, 1946 2 Sheets-Sheet 2 INVENTOR. WILLIAM NUMBERS AT OENEYS Patented Apr. 26, 1949 UNITED STATES PATENT OFFICE STAPLING MACHINE William Numbers, Huntington, N. Y.

Application September 13, 1946, Serial No. 696,707 3 Claims. (Cl. 1-3) The present invention relates to a stapling machine and has particular reference to machines of this type capable of handling the staples shown in my copending application filed on August 16, 1946, and bearing Serial No. 691,054, although it will be apparent that the invention is equally applicable to machines handling the conventional type of staples.

It is an object of the invention to provide a means whereby the legs of a staple may be bent in any desired direction when inserted into the material to be fastened.

A further object of the invention is the provision of novel means for quickly and easily resetting the machine.

Another object of the invention is the provision of a novel and compact construction of anvils usually associated with such machines.

Another object of the invention is the provision of a simple latching means for holding the anvils in any desired position,

A further object of the invention is the provision of novel means, usable at the will of the operator, for exactly positioning in the machine material to be fastened by the machine.

Other and further objects of the invention will become apparent from a reading of the following specification taken in conjunction with the drawings.

In the drawings:

Figure l is a side view of a stapling machine embodying the invention,

Figure 2 is a plan view, partly broken away, of Figure 1,

Figure 3 is a bottom plan view of a portion of Figure 1,

Figure 4 is a sectional view, taken along line 44 of Figure 2,

Figure 5 is a plan view of a modification of the invention.

Figure 6 is a perspective view illustrating certain details of the invention,

Figure '7 is a sectional view taken along line l-I of Figure 6, and

Figure 8 is a cross-sectional View of Figure 5 similar to that shown in Figure 2.

Referring more particularly to the drawings, there is shown therein a stapling machine having a base II] with a pair of upwardly extending arms II between which is pivotally mounted the conventional staple inserting mechanism I2 having an operating handle l3 and plunger I4 for forcing the legs of staples through material to be fastened and thence into engagement with female members or anvils for bending.

In the form of the invention as shown in Figures l to 4, inclusive, a pair of circular anvils I5 each having a staple leg guide in the form of a groove I6 extending from the center of the anvil outwardly to the periphery thereof.

The anvils, preferably and as shown, lie in a recessed portion of the top of the base so that their top faces are in the same plane as the top of the base and they are mounted upon shafts I! which extend through the top of the base and carry gears I8 at their lower ends and. adjacent the under side of the base.

The gears I8 are positioned to mesh with opposite sides of a double rack I9 which is horizontally and slidably carried by a pair of brackets 20 affixed to the under side of the base ID. The rack protrudes through the front of the base and terminates in a handle 2|. It is provided with a series of transverse slots 22 which are positioned to selectively engage a spring pressed detent 23 fastened to the base I0.

Mounted transversely in the base I0 and beneath the rack I9, as shown in Figures 1 and 2, is a shaft 24 which is bent to form an operating handle 25 upon one side of the base. The shaft 24 is bent to form a pair of cranks 26 to which are pivoted vertically extending pins 21 which protrude through openings 28 in the top of the base Ill. Sufiicient clearance is provided for the pins by cutting away a portion of the mechanism I2 as shown at 29.

In operation, it will be apparent that the material to be fastened is inserted into the machine in the conventional manner and the plunger operated to force the legs of a staple through the material and that the legs then come into contact with the centers of the anvils and are bent into a horizontal plane and in a direction in accordance with the setting of the rack I9. To change the position of the anvils, it is only necessary to move the handle 2| first downwardly to disengage the detent 22 from whatever slot it may be in and then move the handle outwardly or inwardly thereby causing the gears and, accordingly, the anvils to rotate in opposite directions and the slots I6 to continue to align in a symmetrical manner. When the anvils reach the positions desired, the handle 2| is released and the detent 23 will engage the slot 22, thereby latching the anvils in position.

While gearing has been shown and described as the means whereby the anvils are moved from one position to another, it will be quite apparent that other mechanical means may be used to accomplish this purpose and, hence, it is desired that the invention not be limited to any particular means for so positioning the anvils.

If it is desired to utilize the aligning mechanism, the handle 25 is turned 180 degrees to the left as viewed in Figure 8, thus causing the pins 21 to extend upwardly and form detents which limit the inward movement of the material inserted into the machine. When it is undesirable to use the aligning device, the handle is placed in the position shown in Figure 6, thereby caus ing the pins 2! to be retracted so that their upper ends lie flush with the surface of the base.

In the form of the invention disclosed in Figure 5, an identical construction is shown with the exception that the anvils in this case consist of a pair of arms 30 pivotally mounted and having grooves 3| extending from the pivot point outwardly.

The operation of the device in this case is identical with that of the device shown in Figures 1 to 4, inclusive.

While only certain forms of the invention have been herein shown and described, it will be apparent to those skilled in the art that many minor modifications of the invention may be made without departing from the spirit of the invention or the scope of the appended claims.

What is claimed is:

1. A stapling machine having a base, a staple ejector, a pair of vertically extending shafts mounted in the base, a pair of horizontally eX- tending arms attached to the upper ends of the shafts and having grooves cut therein for the reception and bending of the legs of a staple from the ejector, gears carried by thelower ends of 2 4 the gears, and an operating handle for moving the rack.

2. A stapling machine having a base, a staple ejector, a pair of vertically extending shafts mounted in the base. a pair of horizontally extending arms attached to the upper ends of the shafts and having grooves cut therein for the reception and bending of the legs of a staple from the ejector, gears carried by the lower ends of the shafts, a double rack for enga ement with the gears, an operating handle formovin'g the rack, and a latch for locking the arms in selected positions.

3. A positioning mechanism for a stapling machine having a base and comprising a shaft mounted in the base, cranks formed in the shaft, pins pivotally mounted upon the cranks and protruding through the base, and means for moving the shaft whereby the pins may be reciprocated through the base.

NUMBERS;

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STA-I ES- IATEN TS Number Name Date 1,621,496 CrOfObt ---1--v'---:="' M33822, 1927 1,704,444 Pol'zer --.1 Mer-.5, 1929 1,826,632 Peterson ..a...., bet. -6,, 1931 1,868,885 Chekian --l.. .s. Jain 5,1932 2,041,780 Rowe n nes...- May "25, '1936 2,112,926 Pan'konin Apr. 5, 1938 2,140,592 Pankonin Dec. '20, 1938 2,289,308 Fanch'er any 7,1942 

